Horizontal rectangular, hollow backed badge in a silver and black finish. On the face is a central emblem of a steel helmet, surmounted on to a swastika within a ring border. The lower section of the ring border bears the inscription N.S.D.F.B.St. To the left of the emblem is an oak leaf with acorns, and to the right is a laurel leaf. The centre of the badge has a black wash background. Across the top of the badge is a bar bearing the inscription GAU-TREFFEN DORTMUND, across the base is a bar with the date inscription 6.-7.APRIL 1935. A retaining pin is attached to the reverse.